<template>
    <div class="shopcart-container">
        <!-- 商品列表项目区域 -->
        <div class="good-list">
            <div class="mui-card" v-for="(item, i) in goodsList" :key="item.id">
                <div class="mui-card-content">
                    <div class="mui-card-content-inner">
                        <mt-switch v-model="$store.getters.getGoodsSelected[item.id]"
                            @change="selectedChanged(item.id, $store.getters.getGoodsSelected[item.id])"></mt-switch>
                        <img src="" alt="">
                        <div class="info">
                            <h1>
                                {{ item.title }}
                            </h1>
                            <p>
                                <span class="price">
                                    ￥{{ item.sell_price }}
                                </span>
                                <!-- 如何从购物车中获取商品的数量 -->
                                <numbox :initcount="$store.getters.getGoodsCount" :goodsId="item.id"></numbox>
                                <a href="#" @click.prevent="remove(item.id, i)">删除</a>
                            </p>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <!-- 结算区域 -->
        <div class="good-list">
            <div class="mui-card">
                <div class="mui-card-content">
                    <div class="mui-card-content-inner jiesuan">
                        <div class="left">
                            <p>
                                总计（不含运费）
                            </p>
                            <p>
                                已勾选商品 
                                <span class="red">
                                {{ $store.getters.getGoodsCountAndAmount.count }} 
                                </span>件，总价 ￥ 
                                <span class="red">
                                {{ $store.getters.getGoodsCountAndAmount.amount }} 
                                </span>
                            </p>
                            <mt-button type="danger">去结算</mt-button>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>
<script>
import numbox from '../subcomponents/Shopcart_numbox.vue';
export default {
    data(){
        return {
            // 获取store中所有的商品ID，然后拼接处一个用逗号分隔的字符串
            goodsList: [],
        }
    },
    created() {
        this.goodsList();
    },
    methods: {
        getGoodsList(){
            var idArr = [];
            this.$store.state.car.forEach(item => idArr.push(item.id));
            if(idArr.length <= 0){
                return;
            }
            this.$http.get('api/goods/getshopcarlist/' + idArr.join(",")).then( result => {
                if(result.body.state == 0){
                    this.goodsList = result.body.message;
                }
            });
        },
        // 删除实现
        remove(id, index){
            this.goodsList.splice(index, 1);
            this.$$store.commit("removeFromCar", id);
        },
        selectedChanged(id, val){
            //将按钮状态同步到store中
            this.$store.commit("updateGoodsSelected", {
                id: id,
                selected: val,
            });
        }
    },
    components: {
        numbox
    }
}
</script>
<style lang="scss" scoped>
    .shopcart-container{
        background-color: #eee;
        overflow: hidden;
        .good-list{
            .mui-card-content-inner{
                display: flex;
                align-items: center;
            }
            img{
                width: 60px;
                height: 60px;
            }
            h1{
                font-size: 13px;
            }
            .info{
                display: flex;
                flex-direction: column;
                justify-content: space-between;
                .price{
                    color: red;
                    font-weight: bold;
                }
            }
        }
        .jiesuan{
            display: flex;
            justify-content: space-between;
            align-items: center;
            .red{
                color: white;
                background-color: red;
                font-size: 16px;
            }
        }
    }
</style>